Violence surged like the mercury Sunday, with three more fatalities from gun violence — and eight others wounded in shootings — bringing the total number of bullet-riddled in the city to 25 in less than 48 hours.

Only Staten Island was safe from the wide-ranging spray of gunfire and sickening weekend bloodshed. At least 12 people were blasted in Brooklyn, eight in the Bronx and another four in Queens. The sole person shot in Manhattan took several slugs to the chest and perished in broad daylight.